Discontinued Operations and Special (Gains) Charges - Narrative (Details) - Discontinued Operations - Disposed of by Sale - NATG $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restitution receipts	$ (1.9)	$ (1.9)
Vendor settlements	(0.1)	(0.1)
Professional fees	0.4	0.5
Maximum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Additional charges (less than)	$ 0.5	$ 0.5

Disposal Group, Including Discontinued Operation, Restitution Receipts

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- Definition

Disposal Group, Including Discontinued Operation, Vendor Settlements

+ References

No definition available.

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- Definition

Special Charges, Expected Future Charges

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07.2(a),(b),(c),(d))
-URI http://asc.fasb.org/extlink&oid=116637345&loc=SL114874292-224272

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-Publisher FASB
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-Topic 946
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-Section 45
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